Home / 12,944,601.28-17,863,532.40-7,143,382.90

Finding the Fourth Proportional to 12,944,601.28, 17,863,532.40 and 7,143,382.90

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Solution

The fourth proportional to 12,944,601.28, 17,863,532.40 and 7,143,382.90 is: 9,857,858.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944,601.28 : 17,863,532.40 = 7,143,382.90 : x
  2. Step 2: Convert to fraction form
    12,944,601.28/17,863,532.40 = 7,143,382.90/x
  3. Step 3: Cross multiply
    12,944,601.28x = 17,863,532.40 × 7,143,382.90
  4. Step 4: Simplify right side
    12,944,601.28x = 127,606,051,879,755.95
  5. Step 5: Solve for x
    x = 127,606,051,879,755.95/12,944,601.28
  6. Step 6: Final answer
    x = 9,857,858.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.